Erratum: Trop-2 is up-regulated in invasive prostate cancer and displaces FAK from focal contacts

Trerotola, Marco; Ganguly, Kirat Kumar; Fazli, Ladan; Fedele, Carmine; Lu, Huimin; Dutta, Anindita; Liu, Qin; Angelis, Tiziana De; Riddell, Luke W.; Riobó, Natalia A.; Gleave, Martin E.; Zoubeidi, Amina; Pestell, Richard G.; Altieri, Dario C.; Languino, Lucia R.

doi:10.18632/oncotarget.6187

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“… 7 , 8 Additionally, Trop2 is reportedly involved in the invasion and metastasis of various carcinomas, including thyroid cancer, 9 colon cancer, 10 and prostate cancer. 11 To the best of our knowledge, no studies have been conducted regarding the possible role of Trop2 in invasion and metastasis of HCC. Thus, the aim of the present study was to characterize the function of Trop2 in HCC using in vitro techniques.…”

Section: Introductionmentioning

confidence: 99%

Silencing of the TROP2 gene suppresses proliferation and invasion of hepatocellular carcinoma HepG2 cells

et al. 2019

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Objectives Overexpression of human trophoblast cell surface antigen 2 (Trop2) has been observed in many cancers; however, its roles in proliferation, apoptosis, migration, and invasion of hepatocellular carcinoma (HCC) remain unclear. Thus, this study aimed to characterize the function of Trop2 in HCC. Methods Trop2 protein expression was detected by immunohistochemistry in HCC tissues. Cell proliferation, apoptosis, and invasion were respectively measured by CCK-8, flow cytometry, Transwell, and wound healing assays. Expression levels of epithelial–mesenchymal transition-related proteins and Trop2 protein in HCC cell lines were detected by western blotting after silencing of the TROP2 gene. Results Trop2 protein was highly expressed in HCC tissues and HCC cell lines. Trop2 mRNA and protein expression levels decreased in HepG2 and HCCLM3 cells after transfection with Trop2 siRNA. Silencing of the TROP2 gene in HepG2 and HCCLM3 cells strongly inhibited cell proliferation and migration, while enhancing cell apoptosis. Investigation of the molecular mechanism revealed that silencing of the TROP2 gene suppressed epithelial–mesenchymal transition of HepG2 and HCCLM3 cells. Conclusions The results of the present study may improve understanding of the role of Trop2 in regulation of cell proliferation and invasion, and may aid in development of novel therapy for HCC.

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